Basic Math question and answers for August 19, 2023
- Q The data set below contains the electricity​ costs, in​ dollars,during July 2013 for a random sample of30 ​one-bedroom apartments in a large city. Complete parts​ (a)and​ (b).136911991841141961241321461401381681411551931598617518114821015598163222149111162170116a. Decide whether the...
- Q (PLEASE TYPE THE ANSWERS) (STATISTICS 500)In a large clinical​ trial, 390 comma 827390,827 children wererandomly assigned to two groups. The treatment group consisted of194 comma 857194,857 children given a vaccine...
- Q Assume that the average volume of raindrops globally is normallydistributed with mean 0.45 ml and variance 0.01 ml2.Michael measures the volume of two raindrop at Rainyville as 0.65ml and 0.75...
- Q Allstate Batteries advertises and sells a 4 year (48 months)battery. You work at Consumer Digest, a consumer advocacyorganization, and have been receiving complaints from consumers whofelt they were not receiving...
- Q Given the following relationship:Shoe Size | Height (inches)7.5 668 678 6810 7110.5 7011 73a) Letting the variable x represent shoe size and y representheight, determine the least squares regression line...
- Q Order in choice. Does the order in which wine is presented makeadifference? Several choices of wine are presented one at a time andin sequence,and the subject is then asked to...
- Q The time in hours that a technician requires to performpreventative maintenance on an air conditioning unit has a meantime of one (1) hour and a standard deviation also of one...
- Q (a) List three criteria to make decision about the nullhypothesis in inferential statistics. (b) When will you reject thenull hypothesis using those criteria?
- Q 3. What is the width of 68% confidence interval in terms ofstandard deviation (How many standard deviation is equivalent tothe width of 68% confidence interval)? What about 95% and 99.7%?...
- Q What are the factors that affect the magnitude of correlationcoefficient? (a) List at least 2 factors and (b) explain how theyaffect the magnitude of correlation coefficient.
- Q A new fuel injection system has been engineered for pickuptrucks. The new system and the old system both produce about thesame average miles per gallon. However, engineers question whichsystem (old...
- Q Researchers record the age and life satisfaction score (ratedfrom 1 to 10, with higher scores indicating greater lifesatisfaction) among a sample of college students. They hypothesizethat age will predict life...
- Q A recent study claimed that at least 15% of junior high studentsare overweight. In a sample of 160 students, 18 were found to beoverweight. At α = 0.05, test the...
- Q Describe a scenario where a researcher could use a Goodness ofFit Test to answer a research question. Fully describe the scenarioand the variables involved and explain the rationale for youranswer....
- Q How do you tell if you can complete a significance test?Do degrees of freedom apply to dependent observations of data?Pls give sample?
- Q CorrelationsA correlation is a:A perfect positive correlation of +1.00 means that:A correlation of .00 means that:A correlation of -1.00 means that:The frequencies on a communication task are listed below. Thehypothesis...
- Q 1) Find the domain and range of the rational function y( x) =x^2-25 / 2x^2 + 13x+15A) Factor the numerator and denominatorB) Determine the point of discontinuity if it exists.
- Q Consider the graph of f(x) = |x|. Useyour knowledge of rigid and nonrigid transformations to write anequation for the following description. Verify with a graphingutility.The graph of f is reflected...
- Q Use synthetic division to divide(-3x3-4x4− 20 − 2?) ÷ (? + 2).Write your answer in the form ???????? ÷ ??????? = ???????? +remainder/divisor
- Q Sketch the graph of f by hand and use your sketch tofind the absolute and local maximum and minimum values off. (Enter your answers as a comma-separated list. If ananswer...
- Q Find the most general antiderivative of the function. (Checkyour answer by differentiation. Use C for the constant ofthe antiderivative.)f(x) =9x8f(x)=f '(t) = sec(t)(sec(t) + tan(t)),    −− π/ 2< t < π/ 2...
- Q A couple who borrow $50,000 for 20 years at 6%, compoundedmonthly, must make monthly payments of $358.22. (Round your answersto the nearest cent.) (a) Find their unpaid balance after 1...
- Q 1).Find an equation for the conic that satisfies the givenconditions.ellipse,    foci(0, −3), (8, −3),    vertex(9, −3)
- Q 1) Find the radius of convergence and intervalof convergence of the given series Σ x^2n/n!2) Find the power series representation off(x)=(x-1)/(x+2) first then find its interval of convergence.
- Q Find the equation of the line goes through (1,0,-1) that isperpendicular to the lines x = 3+2t,y = 3t,z = −4t and x = t,y =t,z = −t. Write it...
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